| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Composite Materials for Nuclear Applications II
|
| Presentation Title |
Oxidation Effects on the Microstructure of Nuclear Graphite |
| Author(s) |
David David Arregui-Mena, Phillip D Edmondson, James B Spicer, Cristian Contescu, Paul M Mummery, Lee Margetts, Nidia Gallego |
| On-Site Speaker (Planned) |
David David Arregui-Mena |
| Abstract Scope |
Large amounts of graphite are required to form the core components of Very High Temperature Reactors (VHTR) and Molten Salt Reactors (MSR) that are being planned. These components must withstand high and strong temperature gradients, neutron irradiation, and oxidation effects. Limited research has been conducted on the effects of oxidation on the microstructure of nuclear graphite especially for modern graphite grades. This research focuses on oxidation experiments combined with x-ray computed tomography to characterize the effects of oxidation on the microstructures of different types of graphite. This type of analysis helps determine the extent of damage generated as a result of accidental ingress of air into a reactor core or by chronic oxidation. The microstructural characterization aspects of this research were complemented with image-based models (IBMs) and random field theory to predict the effects of oxidation in nuclear graphite on its elastic properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Characterization, Modeling and Simulation |